Putting the cursor into a cell of ones own table control: I use a self-defined table control. Is it possible to put the cursor into a particular table cell?

Yes, this is possible with the SetCursor command. In the following example we put the cursor into row 2, column "ordno":

Table (6,1) (16,120)  name="cts"   .....

Column  "Order number"  name="ordno"  size=30

...

SetCursor cell[cts,ordno,2]